24. you eat the correct foods be able to keep fit and stay healthy.
A. Only if ; will you B. Only if ; you will C. Unless; will you D. Unless ; can you
25. after his death that he was recognized as a great composer.
A. It was not until B. Until C. It was until D. Not until
26. Listen ! The matter has something to do with all of us.
A. to discuss B. to be discussed
C. being discussed D. having been discussed
27. They failed to realize the use the information.
A. we made of B. which we made C. for our making D. for us to use
